Which do you prefer to use to keep in touch with your friends,QQ__________MSN?
#56400
A
and
B
but
C
or
D
so
推荐题目
-Jack, I think you should say sorry to Mary.- I won’t do that _____ she says sorry to me first.
#56305
A
unless
B
if
C
and
D
because
—Shall we get off the bus here?—Yes. But we won’t get off _______ it stops.
#56355
A
when
B
until
C
while
D
after
